Improvement in heel-trimming machines



c. J. ADDY.

Improvement in Heel-Trimming Machines No. 130,686. Patented-Aug.2'0,1872..

L i? I W M WITNES$ES INVENTOR [UNITED STATES i PATENT O IoE.

CHARLES J. ADDY, OF BOSTON, MASSACHUSETTS, Assienon 0E ONE-HALF E'IsEIGHT ro JOHN E. FOLSOM, OF SAME PL oE;

IMPROVEMENT IN HEEL-TRIMMING MACHINES.

Specification forming part of Letters Patent No. 180,686, dated August20, 1872.

To all whom it may concern:

I, CHARLES J. ADDY, of Boston, in the county of Suffolk and State ofMassachusetts, have invented a certain new and useful Improved Machinefor Trimming Heels, of which the following is a specification:

The nature of the Invent-ion.

The nature of my invention consists, first, in hanging the cutter of thetrimming-machine upon a swinging bar or arm, said arm being pivoted inor nearly in a line with the drivingbelt, so that the swinging of thearm does not interfere with the driving of the cutter-wheel second, incombination with the above swinging arm, a guide or pattern and anadjustable gage screw; third, in combining with. the swinging arm a linkand treadle for operating the same; fourth, in the detail ofconstruction of the holding-jack, which may be best under stood byreference to the drawing and specification.

Description of the Drawing.

Figure 1 is an elevation of the entire machine. Fig. 2 is a plan,showing the jack and its adjuncts. Fig. 3 is an enlarged section,showing a device for limiting the motion of the jack.

General Description.

Ais aframe or standard, to which the several parts ofthe machine areattached. B is a swinging arm, pivoted to the frame of the machine at e,or, if desirable, at either one of the holes 0 e, 850., it beingdesirable to have the swinging arm pivoted nearly in line with thedrivingbelt. D is a revolving cutter, made fast to the shaft D, whichruns in the swinging arm B. C- is a link, pivoted to the swinging arm Bat C and to the foot-lever O at O, the foot-lever 0 being pivoted to theframe of the machine at c. Wis a counterpoise attached to the swingingarm B, and serves to throw up the cutter D from contact with the heel ofthe shoe S. h is a guide-screw screwing into the frame B, its headresting upon the guide-plate H The guide plate or pattern H is connectedwith the jack H, and revolves with it and the shoe. D is the main shaftof the machine, to which the driving power may be communicated. H, Figs.1 and 2, forms apart of the jack, one end swinging upon a pivot at H andthe other end swinging with the hollow journal K L is a hand-wheelattached to the journal K, and serves to revolve the jack H and shoe Sso as to present all parts of the heel to the action of the cutter. L isan arm attached to the hand-wheel L and is provided with check screws 1Z. (See Figs. 2 and 3.) These checkscrews strike upon the shoulders Land L and thus limit the motion of the jack and shoe. h, Fig.1, is awedge-shaped key, which passes through the hollow journal K and throughthe end of the jack H, so as to hold them together and at the same timeto act as an adjusting device for moving the. jack and shoe into prop-.er relative position with the cutter D. A coiled spring in a part of thejack H reacts against the wedge hl, so the jack is always held steadilyin position. h is a screw having a disk which engages in a notch in thewedge h so that any motion of the screw gives a corresponding motion tothe wedge or key h. M is a screw passing through the hollow journal Kits end resting upon the inner sole of the shoe, opposite the center ofthe heel. M is a hand-wheel attached to this screw, and serves tooperate it. K and K Fig. 2, are adjustable checks attached to the jack,and their ends pressing against the counter of the shoe, as shown inFigs. 1 and 2. These checks assist in centering the shoe.

To operate my machine I proceed as follows:

The proper gage plate or pattern H is fastened to the jack; then theadjusting gagescrew h is set so as to govern the motion of the swingingarm B, after which the shoe is placed in the jack and fastened by meansof the screw M. When everything is ready the cutter is brought down intoposition by means of the treadle O, and the shoe is revolved so that thecutter may act upon all parts of the heel to be trimmed. v

I claim as my invention--,

1. The combination of the swinging bar B and revolving cutter D with theguiding device h H or its equivalent, substantially as described, andfor the purpose set forth.

2. The combination of the swinging arm B and revolving cutter D with thetreadle O and link 0 substantially as described, and for the purpose setforth.

3. The combination of the swinging arm B and the revolving cutter D withthe adj ustable fulcrum e e e, &c., substantially as described, and forthe purpose set forth.

4. The combination of the adjustable cheeks K K with the jack H,substantially as de scribed, and for the purpose set forth.

5. The combination of the hollowj ournal K the key-wedge M, theadjustable screw b and the jack H, substantially as described, and forthe purpose set forth.

6. The combination of the shoulders I l with the jack H, operatingsubstantially as described, and for the purpose set forth.

CHARLES J. ADDY,

Witnesses:

' H. FLOYD FAULKNER,

FRANK G. PARKER.

